反应详情

A solution of 2-fluorenecarboxaldehyde (15 g, 77.1 mmol) in 250 mL of 10% solution of acetic acid in ethyl acetate was hydrogenated at 80 psi of hydrogen during 24 hours at room temperature over 20% palladium hydroxide on carbon (catalytic amount). The reaction was monitored by TLC (silica, 25% ethyl acetate in hexane). The catalyst was filtered off, evaporation of the solvents followed by recrystallization of the residual solid from ethanol:water 5:1 afforded 9.6 g (69.0%) of the product as colorless solid.

1. filtrationThe catalyst was filtered off
2. customevaporation of the solvents
3. customfollowed by recrystallization of the residual solid from ethanol:water 5:1